Devonian rodingite from the northern margin of the North China Craton: mantle wedge metasomatism during ocean–continent convergence

Hu, Chao-Nan; Santosh, M.

doi:10.1080/00206814.2017.1365631

Cited by 10 publications

(13 citation statements)

References 67 publications

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“…Recent studies focusing on rodingite mineralogy and geochemistry show that rodingites can additionally provide useful information about the oceanic hydrothermalism. They allow to discuss the tectono-metamorphic evolution of the serpentinite (Laborda-López et al, 2018;Li et al, 2008), to define pressure-temperature conditions (Koutsovitis et al, 2013;Li et al, 2007Li et al, , 2004Zanoni et al, 2016), to determine geodynamic settings (Ferrando et al, 2010;Hu and Santosh, 2018;Wang et al, 2019), or even to resolve the age of the serpentinization process itself (Dubińska et al, 2004;Haws et al, 2021;Li et al, 2014). Furthermore, rodingites represent an effective indicator of the composition of fluids that circulate on the ocean floor and subduction zone environments (Duan et al, 2022;Salvioli-Mariani et al, 2020;Wang et al, 2019).…”

Section: Introductionmentioning

confidence: 99%

On the origin of vesuvianite-rich rodingites from the Western Carpathians, Slovakia

Butek

Grégoire

Spišiak

et al. 2022

Lithos

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Section: Introductionmentioning

confidence: 99%

On the origin of vesuvianite-rich rodingites from the Western Carpathians, Slovakia

Butek

Grégoire

Spišiak

et al. 2022

Lithos

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“…388 Ma is suggested to be the best estimate for the timing of rodingitization in the northern NCC. A few post-388 Ma zircon grains were reported for two rodingite samples by Hu and Santosh (2018). These zircon grains are very small (<50 μm) and commonly have high U contents.…”

Section: Statement Of Significancementioning

confidence: 99%

Direct dating rodingitization in the northern North China Craton using garnet U–Pb geochronometry

Ran,

Wang,

Yang

et al. 2024

Terra Nova

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The formation of rodingites has been a continually controversial topic, largely due to the absence of minerals that can be unambiguously dated. Here, we present a case study that utilized LA‐ICPMS garnet U–Pb dating, in conjunction with field investigations, petrology and Raman spectroscopy, to reveal the age and petrogenesis of rodingite in the northern North China Craton. The rodingites are spatially associated with mafic and alkaline rocks. Our findings indicate that rodingitization occurred at ca. 388 Ma, making it about 5–10 Myr younger than its mafic protoliths, but contemporaneous with the adjoining alkaline plutons. These observations suggest that the rodingitization may be attributed to hydrothermal fluids from the alkaline magmas. Our study emphasizes the importance of utilizing garnet U–Pb dating to determine the timing of rodingitization and introduces a novel perspective on the relationship between rodingitization and alkaline magmas in extensional continental settings.

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“…In any case, the vesuvianite tends to form at later stages of the rodingitization process and thus represents a higher extent of metasomatic transformation [4,5,12,42,46]. This mineral is abundant in rodingites affected by intense metamorphism [41,42,44,49], but numerous descriptions of rodingites lacking vesuvianite are equally frequent [6,10,39,[50][51][52][53][54][55]. As it is stable over a wide range of temperatures [42,47], the key factor controlling the crystallization of vesuvianite is still not evident and more research is needed on this subject.…”

Section: Mineralogical Evolutionmentioning

confidence: 99%

Garnet-Vesuvianite Equilibrium in Rodingites from Dobšiná (Western Carpathians)

2021

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Intensively metasomatized rocks from serpentinized ultramafic tectonic fragments in Dobšiná, Western Carpathians, consist of typical rodingite mineral association: hydrated garnet, vesuvianite, diopside and clinochlore. Electron microprobe analysis (EMPA) and Micro-Raman analyses of the main minerals evidence complex mineralogical evolution and variable mineral chemistry. Garnet solid solution is dominated by grossular-andradite series, which demonstrates a significant degree of hydration, mainly for grossular rich garnet cores. Garnet is locally enriched in TiO2 (up to 13 wt%), possibly indicating a chemical relic of a Ti-oxide mineral. Younger, andradite-richer garnet rims demonstrate a low degree of hydration, suggesting a harder incorporation of an (OH)− anion into its crystal structure. Garnet chemical variations display an ideal negative correlation between Al and (Fe3+ + Ti). The most recent mineral phase is represented by euhedral vesuvianite (± chlorite), which crystallizes at the expense of the garnet solid solution. This reaction shows a well-equilibrated character and indicates a high extent of rodingitization process. Chlorite thermometry models suggest an average temperature of late rodingite (trans) formation of about 265 °C.

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Devonian rodingite from the northern margin of the North China Craton: mantle wedge metasomatism during ocean–continent convergence

Cited by 10 publications

References 67 publications

On the origin of vesuvianite-rich rodingites from the Western Carpathians, Slovakia

On the origin of vesuvianite-rich rodingites from the Western Carpathians, Slovakia

Direct dating rodingitization in the northern North China Craton using garnet U–Pb geochronometry

Garnet-Vesuvianite Equilibrium in Rodingites from Dobšiná (Western Carpathians)

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